body {
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: #4c4c4c
    url("https://u.kanobu.ru/editor/images/80/da70cdef-565d-4aed-860c-568e691bfba5.jpg");
  background-size: cover;
  font-family: sans-serif;
}
header {
  position: fixed;
  top: 0;
  color: #fff;
  text-shadow: rgb(112, 112, 112) 0 0 10px;
}
.wrapper {
  width: 765px;
  display: flex;
  padding: 10px;
  border-radius: 10px;
  background-color: rgba(0, 0, 0, 0.5);
}

video {
  box-shadow: 0 0 1px 3px rgba(0, 0, 0, 0.1);
}

.speed {
  border: 1px dotted #fff;
  background: transparent;
  flex: 1;
  display: flex;
  align-items: flex-start;
  margin: 10px;
  border-radius: 10px;
  box-shadow: 0 0 1px 3px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.speed-bar {
  width: 100%;
  background: linear-gradient(-170deg, #ae2368 0%, #cf6e6e 100%);
  text-shadow: 1px 1px 0 rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2px;
  color: white;
  height: 16.3%;
}